# STC SA2172WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Irvin Industries Inc, United States
- Description: Installation of Irvin Industries Net Assembly 120012-501 used in conjunction with Cargo Pallet125001-501, -503, -505, -507. (720-180C) (707-331C)
- Status date: August 19, 1970
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A26](https://openairdocs.org/tcds/4A26), [TCDS 4A28](https://openairdocs.org/tcds/4A28)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50401F5888F5E86285256CC200015A99.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2172WE

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 707 ([TCDS 4A26](https://openairdocs.org/tcds/4A26))
- The Boeing Company 720 ([TCDS 4A28](https://openairdocs.org/tcds/4A28))

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